Update locale_en-US.ini

Double entry of "config.log_config"

conf/locale/locale_en-US.ini

@@ -465,7 +465,6 @@ config.picture_service = Picture Service
 config.disable_gravatar = Disable Gravatar
 config.log_config = Log Configuration
 config.log_mode = Log Mode
-config.log_config = Log Config
 
 monitor.cron = Cron Tasks
 monitor.name = Name